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							1255 lines
						
					
					
						
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							1255 lines
						
					
					
						
							51 KiB
						
					
					
				<?php
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/* For licensing terms, see /license.txt */
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/**
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 * Include file with functions for the announcements module.
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 * @author jmontoya
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 * @package chamilo.announcements
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 * @todo use OOP
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 */
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class AnnouncementManager
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{
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    public function __construct()
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    {
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    }
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    /**
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     * @return array
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     */
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    public static function get_tags()
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    {
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        return array(
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            '((user_name))',
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            '((user_firstname))',
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            '((user_lastname))',
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            '((teacher_name))',
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            '((teacher_email))',
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            '((course_title))',
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            '((course_link))',
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            '((official_code))',
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        );
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    }
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    /**
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     * @param int       $userId
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     * @param string    $content
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     * @param string    $course_code
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     * @param int       $session_id
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     *
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     * @return mixed
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     */
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    public static function parse_content($userId, $content, $course_code, $session_id = 0)
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    {
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        $readerInfo = api_get_user_info($userId);
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        $courseInfo = api_get_course_info($course_code);
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        $teacher_list = CourseManager::get_teacher_list_from_course_code($courseInfo['code']);
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        $teacher_name = '';
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        if (!empty($teacher_list)) {
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            foreach ($teacher_list as $teacher_data) {
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                $teacher_name = api_get_person_name($teacher_data['firstname'], $teacher_data['lastname']);
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                $teacher_email = $teacher_data['email'];
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                break;
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            }
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        }
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        $courseLink = api_get_course_url($course_code, $session_id);
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        $data['user_name'] = $readerInfo['username'];
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        $data['user_firstname'] = $readerInfo['firstname'];
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        $data['user_lastname'] = $readerInfo['lastname'];
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        $data['teacher_name'] = $teacher_name;
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        $data['teacher_email'] = $teacher_email;
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        $data['course_title'] = $courseInfo['name'];
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        $data['course_link'] = Display::url($courseLink, $courseLink);
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        $data['official_code'] = $readerInfo['official_code'];
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        $content = str_replace(self::get_tags(), $data, $content);
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        return $content;
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    }
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    /**
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     * Gets all announcements from a course
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     * @param	string course db
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     * @param	int session id
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     * @return	array html with the content and count of announcements or false otherwise
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     */
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    public static function get_all_annoucement_by_course($course_info, $session_id = 0)
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    {
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        $session_id = intval($session_id);
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        $course_id = $course_info['real_id'];
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        $tbl_announcement = Database::get_course_table(TABLE_ANNOUNCEMENT);
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        $tbl_item_property = Database::get_course_table(TABLE_ITEM_PROPERTY);
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        $sql = "SELECT DISTINCT announcement.id, announcement.title, announcement.content
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				FROM $tbl_announcement announcement, $tbl_item_property toolitemproperties
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				WHERE   announcement.id = toolitemproperties.ref AND
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				        toolitemproperties.tool='announcement' AND
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				        announcement.session_id  = '$session_id' AND
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				        announcement.c_id = $course_id AND
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				        toolitemproperties.c_id = $course_id
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				ORDER BY display_order DESC";
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        $rs = Database::query($sql);
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        $num_rows = Database::num_rows($rs);
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        if ($num_rows > 0) {
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            $list = array();
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            while ($row = Database::fetch_array($rs)) {
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                $list[] = $row;
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            }
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            return $list;
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        }
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        return false;
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    }
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    /**
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     * This functions swithes the visibility a course resource
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     * using the visibility field in 'item_property'
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     * @param    array	the course array
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     * @param    int     ID of the element of the corresponding type
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     * @return   bool    False on failure, True on success
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     */
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    public static function change_visibility_announcement($_course, $id)
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    {
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        $session_id = api_get_session_id();
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        $item_visibility = api_get_item_visibility($_course, TOOL_ANNOUNCEMENT, $id, $session_id);
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        if ($item_visibility == '1') {
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            api_item_property_update($_course, TOOL_ANNOUNCEMENT, $id, 'invisible', api_get_user_id());
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        } else {
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            api_item_property_update($_course, TOOL_ANNOUNCEMENT, $id, 'visible', api_get_user_id());
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        }
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        return true;
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    }
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    /**
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     * Deletes an announcement
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     * @param array $_course the course array
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     * @param int 	$id the announcement id
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     */
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    public static function delete_announcement($_course, $id)
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    {
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        api_item_property_update($_course, TOOL_ANNOUNCEMENT, $id, 'delete', api_get_user_id());
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    }
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    /**
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     * Deletes all announcements by course
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     * @param array $_course the course array
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     */
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    public static function delete_all_announcements($_course)
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    {
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        $announcements = self::get_all_annoucement_by_course($_course, api_get_session_id());
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        if (!empty($announcements)) {
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            foreach ($announcements as $annon) {
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                api_item_property_update($_course, TOOL_ANNOUNCEMENT, $annon['id'], 'delete', api_get_user_id());
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            }
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        }
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    }
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    /**
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     * Displays one specific announcement
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     * @param int $announcement_id, the id of the announcement you want to display
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     */
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    public static function display_announcement($announcement_id)
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    {
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        if ($announcement_id != strval(intval($announcement_id))) {
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            return false;
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        }
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        global $charset;
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        $tbl_announcement = Database::get_course_table(TABLE_ANNOUNCEMENT);
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        $tbl_item_property = Database::get_course_table(TABLE_ITEM_PROPERTY);
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        $course_id = api_get_course_int_id();
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        if (api_is_allowed_to_edit(false, true) || (api_get_course_setting('allow_user_edit_announcement') && !api_is_anonymous())) {
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            $sql_query = "  SELECT announcement.*, toolitemproperties.*
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                            FROM $tbl_announcement announcement, $tbl_item_property toolitemproperties
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                            WHERE announcement.id = toolitemproperties.ref
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                            AND announcement.id = '$announcement_id'
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                            AND toolitemproperties.tool='announcement' AND
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                            announcement.c_id = $course_id AND
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							toolitemproperties.c_id = $course_id
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                            ORDER BY display_order DESC";
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        } else {
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            $group_list = GroupManager::get_group_ids($course_id, api_get_user_id());
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            if (empty($group_list)) {
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                $group_list[] = 0;
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            }
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            if (api_get_user_id() != 0) {
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                $sql_query = "	SELECT announcement.*, toolitemproperties.*
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    							FROM $tbl_announcement announcement, $tbl_item_property toolitemproperties
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    							WHERE announcement.id = toolitemproperties.ref
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    							AND announcement.id = '$announcement_id'
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    							AND toolitemproperties.tool='announcement'
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    							AND (toolitemproperties.to_user_id='" . api_get_user_id() . "' OR toolitemproperties.to_group_id IN ('0', '" . implode("', '", $group_list) . "'))
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    							AND toolitemproperties.visibility='1' AND
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    							announcement.c_id = $course_id AND
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								toolitemproperties.c_id = $course_id
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    							ORDER BY display_order DESC";
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            } else {
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                $sql_query = "	SELECT announcement.*, toolitemproperties.*
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    							FROM $tbl_announcement announcement, $tbl_item_property toolitemproperties
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    							WHERE announcement.id = toolitemproperties.ref
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    							AND announcement.id = '$announcement_id'
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    							AND toolitemproperties.tool='announcement'
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    							AND toolitemproperties.to_group_id='0'
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    							AND toolitemproperties.visibility='1' AND
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    							announcement.c_id = $course_id AND
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								toolitemproperties.c_id = $course_id
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    							";
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            }
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        }
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        $sql_result = Database::query($sql_query);
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        if (Database::num_rows($sql_result) > 0) {
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            $result = Database::fetch_array($sql_result, 'ASSOC');
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            $title = $result['title'];
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            $content = $result['content'];
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            echo "<table height=\"100\" width=\"100%\" cellpadding=\"5\" cellspacing=\"0\" class=\"data_table\">";
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            echo "<tr><td><h2>" . $title . "</h2></td></tr>";
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            if (api_is_allowed_to_edit(false, true) || (api_get_course_setting('allow_user_edit_announcement') && !api_is_anonymous())) {
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                $modify_icons = "<a href=\"" . api_get_self() . "?" . api_get_cidreq() . "&action=modify&id=" . $announcement_id . "\">" . Display::return_icon('edit.png', get_lang('Edit'), '', ICON_SIZE_SMALL) . "</a>";
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                if ($result['visibility'] == 1) {
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                    $image_visibility = "visible";
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                    $alt_visibility = get_lang('Hide');
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                } else {
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                    $image_visibility = "invisible";
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                    $alt_visibility = get_lang('Visible');
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                }
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                global $stok;
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                $modify_icons .= "<a href=\"" . api_get_self() . "?" . api_get_cidreq() . "&origin=" . (!empty($_GET['origin']) ? Security::remove_XSS($_GET['origin']) : '') . "&action=showhide&id=" . $announcement_id . "&sec_token=" . $stok . "\">" .
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                    Display::return_icon($image_visibility . '.png', $alt_visibility, '', ICON_SIZE_SMALL) . "</a>";
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                if (api_is_allowed_to_edit(false, true)) {
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                    $modify_icons .= "<a href=\"" . api_get_self() . "?" . api_get_cidreq() . "&action=delete&id=" . $announcement_id . "&sec_token=" . $stok . "\" onclick=\"javascript:if(!confirm('" . addslashes(api_htmlentities(get_lang('ConfirmYourChoice'), ENT_QUOTES, $charset)) . "')) return false;\">" .
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                        Display::return_icon('delete.png', get_lang('Delete'), '', ICON_SIZE_SMALL) .
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                        "</a>";
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                }
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                echo "<tr><th style='text-align:right'>$modify_icons</th></tr>";
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            }
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            $content = self::parse_content($result['to_user_id'], $content, api_get_course_id(), api_get_session_id());
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            echo "<tr><td>$content</td></tr>";
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            echo "<tr><td class=\"announcements_datum\">" . get_lang('LastUpdateDate') . " : " . api_convert_and_format_date($result['insert_date'], DATE_TIME_FORMAT_LONG) . "</td></tr>";
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            // User or group icon
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            $sent_to_icon = '';
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            if ($result['to_group_id'] !== '0' and $result['to_group_id'] !== 'NULL') {
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                $sent_to_icon = Display::return_icon('group.gif', get_lang('AnnounceSentToUserSelection'));
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            }
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            $sent_to = self::sent_to('announcement', $announcement_id);
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            $sent_to_form = self::sent_to_form($sent_to);
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            echo Display::tag('td', get_lang('SentTo') . ' : ' . $sent_to_form, array('class' => 'announcements_datum'));
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            $attachment_list = self::get_attachment($announcement_id);
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            if (count($attachment_list) > 0) {
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                echo "<tr><td>";
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                $realname = $attachment_list['path'];
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                $user_filename = $attachment_list['filename'];
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                $full_file_name = 'download.php?'.api_get_cidreq().'&file=' . $realname;
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                echo '<br/>';
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                echo Display::return_icon('attachment.gif', get_lang('Attachment'));
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                echo '<a href="' . $full_file_name . ' "> ' . $user_filename . ' </a>';
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                echo ' - <span class="forum_attach_comment" >' . $attachment_list['comment'] . '</span>';
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                if (api_is_allowed_to_edit(false, true)) {
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                    echo Display::url(Display::return_icon('delete.png', get_lang('Delete'), '', 16), api_get_self() . "?" . api_get_cidreq() . "&action=delete_attachment&id_attach=" . $attachment_list['id'] . "&sec_token=" . $stok);
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                }
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                echo '</td></tr>';
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            }
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            echo "</table>";
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        } else {
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            return false;
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        }
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    }
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    /**
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     * @return int
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     */
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    public static function get_last_announcement_order()
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    {
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        $tbl_announcement = Database::get_course_table(TABLE_ANNOUNCEMENT);
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        $course_id = api_get_course_int_id();
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        $sql_max = "SELECT MAX(display_order) FROM $tbl_announcement WHERE c_id = $course_id ";
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        $res_max = Database::query($sql_max);
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        $order = 0;
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        if (Database::num_rows($res_max)) {
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            $row_max = Database::fetch_array($res_max);
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            $order   = intval($row_max[0])+1;
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        }
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        return $order;
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    }
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    /**
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     * Store an announcement in the database (including its attached file if any)
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     * @param string    Announcement title (pure text)
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     * @param string    Content of the announcement (can be HTML)
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     * @param int       Display order in the list of announcements
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						|
     * @param array     Array of users and groups to send the announcement to
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						|
     * @param array	    uploaded file $_FILES
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						|
     * @param string    Comment describing the attachment
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     * @return int      false on failure, ID of the announcement on success
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     */
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    public static function add_announcement(
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        $emailTitle,
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        $newContent,
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        $sentTo,
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        $file = array(),
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        $file_comment = null,
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        $end_date = null,
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        $sendToUsersInSession = false
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						|
    ) {
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        $_course = api_get_course_info();
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						|
        $tbl_announcement = Database::get_course_table(TABLE_ANNOUNCEMENT);
 | 
						|
 | 
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        // filter data
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						|
        $emailTitle = Database::escape_string($emailTitle);
 | 
						|
        $newContent = Database::escape_string($newContent);
 | 
						|
 | 
						|
        if (empty($end_date)) {
 | 
						|
            $end_date = api_get_utc_datetime();
 | 
						|
        } else {
 | 
						|
            $end_date = Database::escape_string($end_date);
 | 
						|
        }
 | 
						|
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
 | 
						|
        $order = self::get_last_announcement_order();
 | 
						|
 | 
						|
        // store in the table announcement
 | 
						|
        $sql = "INSERT INTO $tbl_announcement SET
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						|
				c_id 			= '$course_id',
 | 
						|
				content 		= '$newContent',
 | 
						|
				title 			= '$emailTitle',
 | 
						|
                end_date        = '$end_date',
 | 
						|
				display_order 	= '$order',
 | 
						|
				session_id		= ".api_get_session_id();
 | 
						|
        $result = Database::query($sql);
 | 
						|
 | 
						|
        if ($result === false) {
 | 
						|
            return false;
 | 
						|
        } else {
 | 
						|
            // Store the attach file.
 | 
						|
            $last_id = Database::insert_id();
 | 
						|
            if (!empty($file)) {
 | 
						|
                self::add_announcement_attachment_file($last_id, $file_comment, $_FILES['user_upload']);
 | 
						|
            }
 | 
						|
 | 
						|
            // store in item_property (first the groups, then the users
 | 
						|
 | 
						|
            if (empty($sentTo) || !empty($sentTo) && isset($sentTo[0]) && $sentTo[0] == 'everyone') {
 | 
						|
                // The message is sent to EVERYONE, so we set the group to 0
 | 
						|
                api_item_property_update($_course, TOOL_ANNOUNCEMENT, $last_id, "AnnouncementAdded", api_get_user_id(), '0');
 | 
						|
            } else {
 | 
						|
                $send_to = self::separate_users_groups($sentTo);
 | 
						|
 | 
						|
                // Storing the selected groups
 | 
						|
                if (is_array($send_to['groups'])) {
 | 
						|
                    foreach ($send_to['groups'] as $group) {
 | 
						|
                        api_item_property_update($_course, TOOL_ANNOUNCEMENT, $last_id, "AnnouncementAdded", api_get_user_id(), $group);
 | 
						|
                    }
 | 
						|
                }
 | 
						|
 | 
						|
                // Storing the selected users
 | 
						|
                if (is_array($send_to['users'])) {
 | 
						|
                    foreach ($send_to['users'] as $user) {
 | 
						|
                        api_item_property_update($_course, TOOL_ANNOUNCEMENT, $last_id, "AnnouncementAdded", api_get_user_id(), '', $user);
 | 
						|
                    }
 | 
						|
                }
 | 
						|
            }
 | 
						|
 | 
						|
            if ($sendToUsersInSession) {
 | 
						|
                self::addAnnouncementToAllUsersInSessions($last_id);
 | 
						|
            }
 | 
						|
 | 
						|
            return $last_id;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param $emailTitle
 | 
						|
     * @param $newContent
 | 
						|
     * @param $to
 | 
						|
     * @param $to_users
 | 
						|
     * @param array $file
 | 
						|
     * @param string $file_comment
 | 
						|
     * @return bool|int
 | 
						|
     */
 | 
						|
    public static function add_group_announcement($emailTitle, $newContent, $to, $to_users, $file = array(), $file_comment = '', $sendToUsersInSession = false)
 | 
						|
    {
 | 
						|
        $_course = api_get_course_info();
 | 
						|
 | 
						|
        // Database definitions
 | 
						|
        $tbl_announcement = Database::get_course_table(TABLE_ANNOUNCEMENT);
 | 
						|
 | 
						|
        $emailTitle = Database::escape_string($emailTitle);
 | 
						|
        $newContent = Database::escape_string($newContent);
 | 
						|
        $order = self::get_last_announcement_order();
 | 
						|
 | 
						|
        $now = api_get_utc_datetime();
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
 | 
						|
        // store in the table announcement
 | 
						|
        $sql = "INSERT INTO $tbl_announcement SET
 | 
						|
                c_id 			= '$course_id',
 | 
						|
                content 		= '$newContent',
 | 
						|
                title 			= '$emailTitle',
 | 
						|
                end_date 		= '$now',
 | 
						|
                display_order 	= '$order',
 | 
						|
                session_id		= " . api_get_session_id();
 | 
						|
        $result = Database::query($sql);
 | 
						|
 | 
						|
        if ($result === false) {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
 | 
						|
        //store the attach file
 | 
						|
        $last_id = Database::insert_id();
 | 
						|
        if (!empty($file)) {
 | 
						|
            self::add_announcement_attachment_file($last_id, $file_comment, $file);
 | 
						|
        }
 | 
						|
 | 
						|
        // store in item_property (first the groups, then the users
 | 
						|
 | 
						|
        if (!isset($to_users)) { // !isset($to): when no user is selected we send it to everyone
 | 
						|
            $send_to = self::separate_users_groups($to);
 | 
						|
            // storing the selected groups
 | 
						|
            if (is_array($send_to['groups'])) {
 | 
						|
                foreach ($send_to['groups'] as $group) {
 | 
						|
                    api_item_property_update($_course, TOOL_ANNOUNCEMENT, $last_id, "AnnouncementAdded", api_get_user_id(), $group);
 | 
						|
                }
 | 
						|
            }
 | 
						|
        } else {
 | 
						|
            // the message is sent to everyone, so we set the group to 0
 | 
						|
            // storing the selected users
 | 
						|
            if (is_array($to_users)) {
 | 
						|
                foreach ($to_users as $user) {
 | 
						|
                    api_item_property_update($_course, TOOL_ANNOUNCEMENT, $last_id, "AnnouncementAdded", api_get_user_id(), '', $user);
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        if ($sendToUsersInSession) {
 | 
						|
            self::addAnnouncementToAllUsersInSessions($last_id);
 | 
						|
        }
 | 
						|
 | 
						|
        return $last_id;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function stores the announcement item in the announcement table
 | 
						|
     * and updates the item_property table
 | 
						|
     *
 | 
						|
     * @param int 	id of the announcement
 | 
						|
     * @param string email
 | 
						|
     * @param string content
 | 
						|
     * @param array 	users that will receive the announcement
 | 
						|
     * @param mixed 	attachment
 | 
						|
     * @param string file comment
 | 
						|
     */
 | 
						|
    public static function edit_announcement($id, $emailTitle, $newContent, $to, $file = array(), $file_comment = '', $sendToUsersInSession = false)
 | 
						|
    {
 | 
						|
        global $_course;
 | 
						|
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
        $tbl_item_property = Database::get_course_table(TABLE_ITEM_PROPERTY);
 | 
						|
        $tbl_announcement = Database::get_course_table(TABLE_ANNOUNCEMENT);
 | 
						|
 | 
						|
        $emailTitle = Database::escape_string($emailTitle);
 | 
						|
        $newContent = Database::escape_string($newContent);
 | 
						|
        $id = intval($id);
 | 
						|
 | 
						|
        // store the modifications in the table announcement
 | 
						|
        $sql = "UPDATE $tbl_announcement SET content = '$newContent', title = '$emailTitle' WHERE c_id = $course_id AND id='$id'";
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        // save attachment file
 | 
						|
        $row_attach = self::get_attachment($id);
 | 
						|
        $id_attach = intval($row_attach['id']);
 | 
						|
 | 
						|
        if (!empty($file)) {
 | 
						|
            if (empty($id_attach)) {
 | 
						|
                self::add_announcement_attachment_file($id, $file_comment, $file);
 | 
						|
            } else {
 | 
						|
                self::edit_announcement_attachment_file($id_attach, $file, $file_comment);
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        // we remove everything from item_property for this
 | 
						|
        $sql_delete = "DELETE FROM $tbl_item_property WHERE c_id = $course_id AND ref='$id' AND tool='announcement'";
 | 
						|
        Database::query($sql_delete);
 | 
						|
 | 
						|
        if ($sendToUsersInSession) {
 | 
						|
            self::addAnnouncementToAllUsersInSessions($id);
 | 
						|
        }
 | 
						|
 | 
						|
 | 
						|
        if ($sendToUsersInSession) {
 | 
						|
            self::addAnnouncementToAllUsersInSessions($id);
 | 
						|
        }
 | 
						|
 | 
						|
        // store in item_property (first the groups, then the users
 | 
						|
 | 
						|
        if (!is_null($to)) {
 | 
						|
            // !is_null($to): when no user is selected we send it to everyone
 | 
						|
 | 
						|
            $send_to = self::separate_users_groups($to);
 | 
						|
 | 
						|
            // storing the selected groups
 | 
						|
            if (is_array($send_to['groups'])) {
 | 
						|
                foreach ($send_to['groups'] as $group) {
 | 
						|
                    api_item_property_update($_course, TOOL_ANNOUNCEMENT, $id, "AnnouncementUpdated", api_get_user_id(), $group);
 | 
						|
                }
 | 
						|
            }
 | 
						|
            // storing the selected users
 | 
						|
            if (is_array($send_to['users'])) {
 | 
						|
                foreach ($send_to['users'] as $user) {
 | 
						|
                    api_item_property_update($_course, TOOL_ANNOUNCEMENT, $id, "AnnouncementUpdated", api_get_user_id(), 0, $user);
 | 
						|
                }
 | 
						|
            }
 | 
						|
        } else {
 | 
						|
            // the message is sent to everyone, so we set the group to 0
 | 
						|
            api_item_property_update($_course, TOOL_ANNOUNCEMENT, $id, "AnnouncementUpdated", api_get_user_id(), '0');
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param int $announcementId
 | 
						|
     */
 | 
						|
    public static function addAnnouncementToAllUsersInSessions($announcementId)
 | 
						|
    {
 | 
						|
        $courseCode = api_get_course_id();
 | 
						|
        $_course = api_get_course_info();
 | 
						|
 | 
						|
        $sessionList = SessionManager::get_session_by_course(api_get_course_id());
 | 
						|
 | 
						|
        if (!empty($sessionList)) {
 | 
						|
            foreach ($sessionList as $sessionInfo) {
 | 
						|
                $sessionId = $sessionInfo['id'];
 | 
						|
                $userList = CourseManager::get_user_list_from_course_code($courseCode, $sessionId);
 | 
						|
 | 
						|
                if (!empty($userList)) {
 | 
						|
                    foreach ($userList as $user) {
 | 
						|
                        api_item_property_update(
 | 
						|
                            $_course,
 | 
						|
                            TOOL_ANNOUNCEMENT,
 | 
						|
                            $announcementId,
 | 
						|
                            "AnnouncementUpdated",
 | 
						|
                            api_get_user_id(),
 | 
						|
                            0,
 | 
						|
                            $user['user_id'],
 | 
						|
                            0,
 | 
						|
                            0,
 | 
						|
                            $sessionId
 | 
						|
                        );
 | 
						|
                    }
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param int $insert_id
 | 
						|
     * @return bool
 | 
						|
     */
 | 
						|
    public static function update_mail_sent($insert_id)
 | 
						|
    {
 | 
						|
        $tbl_announcement = Database::get_course_table(TABLE_ANNOUNCEMENT);
 | 
						|
        if ($insert_id != strval(intval($insert_id))) {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
        $insert_id = intval($insert_id);
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
        // store the modifications in the table tbl_annoucement
 | 
						|
        $sql = "UPDATE $tbl_announcement SET email_sent='1' WHERE c_id = $course_id AND id = $insert_id";
 | 
						|
        Database::query($sql);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets all announcements from a user by course
 | 
						|
     * @param	string course db
 | 
						|
     * @param	int user id
 | 
						|
     * @return	array html with the content and count of announcements or false otherwise
 | 
						|
     */
 | 
						|
    public static function get_all_annoucement_by_user_course($course_code, $user_id)
 | 
						|
    {
 | 
						|
        $course_info = api_get_course_info($course_code);
 | 
						|
        $course_id = $course_info['real_id'];
 | 
						|
 | 
						|
        if (empty($user_id)) {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
        $tbl_announcement = Database::get_course_table(TABLE_ANNOUNCEMENT);
 | 
						|
        $tbl_item_property = Database::get_course_table(TABLE_ITEM_PROPERTY);
 | 
						|
        if (!empty($user_id) && is_numeric($user_id)) {
 | 
						|
            $user_id = intval($user_id);
 | 
						|
            $sql = "SELECT DISTINCT announcement.title, announcement.content
 | 
						|
					FROM $tbl_announcement announcement, $tbl_item_property toolitemproperties
 | 
						|
					WHERE
 | 
						|
						announcement.c_id = $course_id AND
 | 
						|
						toolitemproperties.c_id = $course_id AND
 | 
						|
						announcement.id = toolitemproperties.ref AND
 | 
						|
						toolitemproperties.tool='announcement' AND
 | 
						|
						(
 | 
						|
						  toolitemproperties.insert_user_id='$user_id' AND
 | 
						|
						  (toolitemproperties.to_group_id='0' OR toolitemproperties.to_group_id is null)
 | 
						|
						)
 | 
						|
						AND toolitemproperties.visibility='1'
 | 
						|
						AND announcement.session_id  = 0
 | 
						|
					ORDER BY display_order DESC";
 | 
						|
            $rs = Database::query($sql);
 | 
						|
            $num_rows = Database::num_rows($rs);
 | 
						|
            $content = '';
 | 
						|
            $i = 0;
 | 
						|
            $result = array();
 | 
						|
            if ($num_rows > 0) {
 | 
						|
                while ($myrow = Database::fetch_array($rs)) {
 | 
						|
                    $content.= '<strong>' . $myrow['title'] . '</strong><br /><br />';
 | 
						|
                    $content.= $myrow['content'];
 | 
						|
                    $i++;
 | 
						|
                }
 | 
						|
                $result['content'] = $content;
 | 
						|
                $result['count'] = $i;
 | 
						|
                return $result;
 | 
						|
            }
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
        return false;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function shows the form for sending a message to a specific group or user.
 | 
						|
     * @param $to_already_selected
 | 
						|
     */
 | 
						|
    public static function show_to_form($to_already_selected)
 | 
						|
    {
 | 
						|
        $userList = self::get_course_users();
 | 
						|
        $groupList = self::get_course_groups();
 | 
						|
 | 
						|
        if ($to_already_selected == '' || $to_already_selected == 'everyone') {
 | 
						|
            $to_already_selected = array();
 | 
						|
        }
 | 
						|
 | 
						|
        echo "<table id=\"recipient_list\" >";
 | 
						|
        echo '<tr>';
 | 
						|
        echo '<td>';
 | 
						|
        echo '<label><input type="checkbox" id="send_to_all_users">'.get_lang('SendToAllUsers') . "</label>";
 | 
						|
        echo "</td>";
 | 
						|
        echo '</tr>';
 | 
						|
        echo '<tr>';
 | 
						|
 | 
						|
 | 
						|
        // the form containing all the groups and all the users of the course
 | 
						|
        echo '<td>';
 | 
						|
        echo "<strong>" . get_lang('Users') . "</strong><br />";
 | 
						|
 | 
						|
        self::construct_not_selected_select_form($groupList, $userList, $to_already_selected);
 | 
						|
        echo "</td>";
 | 
						|
 | 
						|
        // the buttons for adding or removing groups/users
 | 
						|
        echo '<td valign="middle">';
 | 
						|
        echo '<button class="arrowr" type="button" onClick="javascript: move(this.form.elements[1], this.form.elements[4])" onClick="javascript: move(this.form.elements[1], this.form.elements[4])"></button>';
 | 
						|
        echo '<br /> <br />';
 | 
						|
        echo '<button class="arrowl" type="button" onClick="javascript: move(this.form.elements[4], this.form.elements[1])" onClick="javascript: move(this.form.elements[4], this.form.elements[1])"></button>';
 | 
						|
        echo "</td>";
 | 
						|
 | 
						|
        echo "<td>";
 | 
						|
 | 
						|
        // the form containing the selected groups and users
 | 
						|
        echo "<strong>" . get_lang('DestinationUsers') . "</strong><br />";
 | 
						|
        self::construct_selected_select_form($groupList, $userList, $to_already_selected);
 | 
						|
        echo "</td>";
 | 
						|
        echo "</tr>";
 | 
						|
        echo "</table>";
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * this function shows the form for sending a message to a specific group or user.
 | 
						|
     */
 | 
						|
    public static function show_to_form_group($group_id)
 | 
						|
    {
 | 
						|
        echo "<table id=\"recipient_list\" >";
 | 
						|
        echo "<tr>";
 | 
						|
        echo "<td>";
 | 
						|
        echo "<select id=\"not_selected_form\" name=\"not_selected_form[]\" size=5 style=\"width:200px\" multiple>";
 | 
						|
        $group_users = GroupManager::getStudentsAndTutors($group_id);
 | 
						|
        foreach ($group_users as $user) {
 | 
						|
            echo '<option value="' . $user['user_id'] . '" title="' . sprintf(get_lang('LoginX'), $user['username']) . '" >' .
 | 
						|
                api_get_person_name($user['firstname'], $user['lastname']) .
 | 
						|
                '</option>';
 | 
						|
        }
 | 
						|
        echo '</select>';
 | 
						|
        echo "</td>";
 | 
						|
 | 
						|
        // the buttons for adding or removing groups/users
 | 
						|
        echo "<td valign=\"middle\">";
 | 
						|
        echo '<button class="arrowr" type="button" onClick="javascript: move(this.form.elements[1], this.form.elements[4])" onClick="javascript: move(this.form.elements[1], this.form.elements[4])"></button>';
 | 
						|
        echo '<br /> <br />';
 | 
						|
        echo '<button class="arrowl" type="button" onClick="javascript: move(this.form.elements[4], this.form.elements[1])" onClick="javascript: move(this.form.elements[4], this.form.elements[1])"></button>';
 | 
						|
        echo "</td>";
 | 
						|
        echo "<td>";
 | 
						|
 | 
						|
        echo "<select id=\"selectedform\" name=\"selectedform[]\" size=5 style=\"width:200px\" multiple>";
 | 
						|
        echo '</select>';
 | 
						|
 | 
						|
        echo "</td>";
 | 
						|
        echo "</tr>";
 | 
						|
        echo "</table>";
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Shows the form for sending a message to a specific group or user.
 | 
						|
     * @param array $groupList
 | 
						|
     * @param array $userList
 | 
						|
     * @param array $to_already_selected
 | 
						|
     */
 | 
						|
    public static function construct_not_selected_select_form(
 | 
						|
        $groupList = array(),
 | 
						|
        $userList = array(),
 | 
						|
        $to_already_selected = array()
 | 
						|
    ) {
 | 
						|
        echo '<select id="not_selected_form" name="not_selected_form[]" size="7" class="span4" multiple>';
 | 
						|
        // adding the groups to the select form
 | 
						|
        if (!empty($groupList)) {
 | 
						|
            foreach ($groupList as $this_group) {
 | 
						|
                if (is_array($to_already_selected)) {
 | 
						|
                    if (!in_array("GROUP:" . $this_group['id'], $to_already_selected)) {
 | 
						|
                        // $to_already_selected is the array containing the groups (and users) that are already selected
 | 
						|
                        $user_label = ($this_group['userNb'] > 0) ? get_lang('Users') : get_lang('LowerCaseUser') ;
 | 
						|
                        $user_disabled = ($this_group['userNb'] > 0) ? "" : "disabled=disabled" ;
 | 
						|
                        echo "<option $user_disabled value=\"GROUP:" . $this_group['id'] . "\">",
 | 
						|
                        "G: ", $this_group['name'], " - " . $this_group['userNb'] . " " . $user_label .
 | 
						|
                            "</option>";
 | 
						|
                    }
 | 
						|
                }
 | 
						|
            }
 | 
						|
            // a divider
 | 
						|
            echo "<option value=\"\">---------------------------------------------------------</option>";
 | 
						|
        }
 | 
						|
 | 
						|
        // adding the individual users to the select form
 | 
						|
 | 
						|
        if (!empty($userList)) {
 | 
						|
            foreach ($userList as $user) {
 | 
						|
                if (is_array($to_already_selected)) {
 | 
						|
                    if (!in_array("USER:" . $user['user_id'], $to_already_selected)) {
 | 
						|
                        // $to_already_selected is the array containing the users (and groups) that are already selected
 | 
						|
                        echo "<option value=\"USER:" . $user['user_id'] . "\" title='" . sprintf(get_lang('LoginX'), $user['username']) . "'>",
 | 
						|
                        "", api_get_person_name($user['firstname'], $user['lastname']),
 | 
						|
                        "</option>";
 | 
						|
 | 
						|
                        if (isset($user['drh_list']) && !empty($user['drh_list'])) {
 | 
						|
                            foreach ($user['drh_list'] as $drh) {
 | 
						|
                                echo "<option value=\"USER:" . $drh['user_id'] . "\" title='" . sprintf(get_lang('LoginX'), $drh['username']) . "'>    ",
 | 
						|
                                "", api_get_person_name($drh['firstname'], $drh['lastname']),
 | 
						|
                                "</option>";
 | 
						|
                            }
 | 
						|
                        }
 | 
						|
                    }
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
        echo "</select>";
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * this function shows the form for sending a message to a specific group or user.
 | 
						|
     */
 | 
						|
    /**
 | 
						|
     * @param null $groupList
 | 
						|
     * @param null $userList
 | 
						|
     * @param $to_already_selected
 | 
						|
     */
 | 
						|
    public static function construct_selected_select_form($groupList = null, $userList = null, $to_already_selected = array())
 | 
						|
    {
 | 
						|
        // we load all the groups and all the users into a reference array that we use to search the name of the group / user
 | 
						|
        $ref_array_groups = self::get_course_groups();
 | 
						|
        $ref_array_users = self::get_course_users();
 | 
						|
 | 
						|
        // we construct the form of the already selected groups / users
 | 
						|
        echo '<select id="selectedform" name="selectedform[]" size="7" multiple class="span4">';
 | 
						|
        if (is_array($to_already_selected)) {
 | 
						|
            foreach ($to_already_selected as $groupuser) {
 | 
						|
                list($type, $id) = explode(":", $groupuser);
 | 
						|
                if ($type == "GROUP") {
 | 
						|
                    echo "<option value=\"" . $groupuser . "\">G: " . $ref_array_groups[$id]['name'] . "</option>";
 | 
						|
                } else {
 | 
						|
                    foreach ($ref_array_users as $key => $value) {
 | 
						|
                        if ($value['user_id'] == $id) {
 | 
						|
                            echo "<option value=\"" . $groupuser . "\" title='" . sprintf(get_lang('LoginX'), $value['username']) . "'>" .
 | 
						|
                                api_get_person_name($value['firstname'], $value['lastname']) . "</option>";
 | 
						|
 | 
						|
                            if (isset($value['drh_list']) && !empty($value['drh_list'])) {
 | 
						|
                                foreach ($value['drh_list'] as $drh) {
 | 
						|
                                    echo "<option value=\"USER:" . $drh['user_id'] . "\" title='" . sprintf(get_lang('LoginX'), $drh['username']) . "'>    ",
 | 
						|
                                    "", api_get_person_name($drh['firstname'], $drh['lastname']),
 | 
						|
                                    "</option>";
 | 
						|
                                }
 | 
						|
                            }
 | 
						|
                            break;
 | 
						|
                        }
 | 
						|
                    }
 | 
						|
                }
 | 
						|
            }
 | 
						|
        } else {
 | 
						|
            if ($to_already_selected == 'everyone') {
 | 
						|
                // adding the groups to the select form
 | 
						|
                if (is_array($ref_array_groups)) {
 | 
						|
                    foreach ($ref_array_groups as $this_group) {
 | 
						|
                        //api_display_normal_message("group " . $thisGroup[id] . $thisGroup[name]);
 | 
						|
                        if (!is_array($to_already_selected) || !in_array("GROUP:" . $this_group['id'], $to_already_selected)) { // $to_already_selected is the array containing the groups (and users) that are already selected
 | 
						|
                            echo "<option value=\"GROUP:" . $this_group['id'] . "\">",
 | 
						|
                            "G: ", $this_group['name'], " – " . $this_group['userNb'] . " " . get_lang('Users') .
 | 
						|
                                "</option>";
 | 
						|
                        }
 | 
						|
                    }
 | 
						|
                }
 | 
						|
                // adding the individual users to the select form
 | 
						|
                foreach ($ref_array_users as $this_user) {
 | 
						|
                    if (!is_array($to_already_selected) || !in_array("USER:" . $this_user['user_id'], $to_already_selected)) { // $to_already_selected is the array containing the users (and groups) that are already selected
 | 
						|
                        echo "<option value=\"USER:", $this_user['user_id'], "\"  title='" . sprintf(get_lang('LoginX'), $this_user['username']) . "'>",
 | 
						|
                        "", api_get_person_name($this_user['firstname'], $this_user['lastname']),
 | 
						|
                        "</option>";
 | 
						|
                    }
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
        echo "</select>";
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Returns announcement info from its id
 | 
						|
     *
 | 
						|
     * @param int $course_id
 | 
						|
     * @param int $annoucement_id
 | 
						|
     * @return array
 | 
						|
     */
 | 
						|
    public static function get_by_id($course_id, $annoucement_id)
 | 
						|
    {
 | 
						|
        $annoucement_id = intval($annoucement_id);
 | 
						|
        $course_id = $course_id ? intval($course_id) : api_get_course_int_id();
 | 
						|
 | 
						|
        $tbl_announcement = Database::get_course_table(TABLE_ANNOUNCEMENT);
 | 
						|
        $tbl_item_property = Database::get_course_table(TABLE_ITEM_PROPERTY);
 | 
						|
 | 
						|
        $sql = "SELECT DISTINCT announcement.id, announcement.title, announcement.content
 | 
						|
               FROM $tbl_announcement announcement
 | 
						|
               INNER JOIN $tbl_item_property toolitemproperties
 | 
						|
               ON
 | 
						|
                    announcement.id = toolitemproperties.ref AND
 | 
						|
                    announcement.c_id = $course_id AND
 | 
						|
                    toolitemproperties.c_id = $course_id
 | 
						|
               WHERE
 | 
						|
                toolitemproperties.tool='announcement' AND
 | 
						|
                announcement.id = $annoucement_id";
 | 
						|
        $result = Database::query($sql);
 | 
						|
        if (Database::num_rows($result)) {
 | 
						|
            return Database::fetch_array($result);
 | 
						|
        }
 | 
						|
        return array();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * this function gets all the users of the course,
 | 
						|
     * including users from linked courses
 | 
						|
     * @deprecate use CourseManager class
 | 
						|
     */
 | 
						|
    public static function get_course_users()
 | 
						|
    {
 | 
						|
        //this would return only the users from real courses:
 | 
						|
        $session_id = api_get_session_id();
 | 
						|
        if ($session_id != 0) {
 | 
						|
            $userList = CourseManager::get_real_and_linked_user_list(
 | 
						|
                api_get_course_id(),
 | 
						|
                true,
 | 
						|
                $session_id,
 | 
						|
                true
 | 
						|
            );
 | 
						|
        } else {
 | 
						|
            $userList = CourseManager::get_real_and_linked_user_list(
 | 
						|
                api_get_course_id(),
 | 
						|
                false,
 | 
						|
                0,
 | 
						|
                true
 | 
						|
            );
 | 
						|
        }
 | 
						|
 | 
						|
        return $userList;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * this function gets all the groups of the course,
 | 
						|
     * not including linked courses
 | 
						|
     */
 | 
						|
    public static function get_course_groups()
 | 
						|
    {
 | 
						|
        $session_id = api_get_session_id();
 | 
						|
        if ($session_id != 0) {
 | 
						|
            $new_group_list = CourseManager::get_group_list_of_course(api_get_course_id(), $session_id, 1);
 | 
						|
        } else {
 | 
						|
            $new_group_list = CourseManager::get_group_list_of_course(api_get_course_id(), 0, 1);
 | 
						|
        }
 | 
						|
        return $new_group_list;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This tools loads all the users and all the groups who have received
 | 
						|
     * a specific item (in this case an announcement item)
 | 
						|
     */
 | 
						|
    public static function load_edit_users($tool, $id)
 | 
						|
    {
 | 
						|
        $tbl_item_property = Database::get_course_table(TABLE_ITEM_PROPERTY);
 | 
						|
        $tool = Database::escape_string($tool);
 | 
						|
        $id = intval($id);
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
 | 
						|
        $sql = "SELECT * FROM $tbl_item_property WHERE c_id = $course_id AND tool='$tool' AND ref = $id";
 | 
						|
        $result = Database::query($sql);
 | 
						|
        while ($row = Database::fetch_array($result)) {
 | 
						|
            $to_group = $row['to_group_id'];
 | 
						|
            switch ($to_group) {
 | 
						|
                // it was send to one specific user
 | 
						|
                case null:
 | 
						|
                    $to[] = "USER:" . $row['to_user_id'];
 | 
						|
                    break;
 | 
						|
                // it was sent to everyone
 | 
						|
                case 0:
 | 
						|
                    return "everyone";
 | 
						|
                    exit;
 | 
						|
                    break;
 | 
						|
                default:
 | 
						|
                    $to[] = "GROUP:" . $row['to_group_id'];
 | 
						|
            }
 | 
						|
        }
 | 
						|
        return $to;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * returns the javascript for setting a filter
 | 
						|
     * this goes into the $htmlHeadXtra[] array
 | 
						|
     */
 | 
						|
    public static function user_group_filter_javascript()
 | 
						|
    {
 | 
						|
        return "<script language=\"JavaScript\" type=\"text/JavaScript\">
 | 
						|
		<!--
 | 
						|
		function jumpMenu(targ,selObj,restore)
 | 
						|
		{
 | 
						|
		  eval(targ+\".location='\"+selObj.options[selObj.selectedIndex].value+\"'\");
 | 
						|
		  if (restore) selObj.selectedIndex=0;
 | 
						|
		}
 | 
						|
		//-->
 | 
						|
		</script>";
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * returns all the javascript that is required for easily
 | 
						|
     * setting the target people/groups
 | 
						|
     * this goes into the $htmlHeadXtra[] array
 | 
						|
     */
 | 
						|
    public static function to_javascript()
 | 
						|
    {
 | 
						|
        $www = api_get_path(WEB_PATH);
 | 
						|
        /*
 | 
						|
         * Do not allow this kind of behaviour. js minifieds should be manage by the template class or assetic or whatever see #4757 for more info
 | 
						|
        if (api_get_setting('server_type') == 'test') {
 | 
						|
            $src = $www . 'main/announcements/resources/js/main.js';
 | 
						|
        } else {
 | 
						|
            $src = $www . 'main/announcements/resources/js/main.min.js';
 | 
						|
        }*/
 | 
						|
        $src = $www . 'main/announcements/resources/js/main.js';
 | 
						|
        $result = Javascript::tag($src);
 | 
						|
        $root = Chamilo::url();
 | 
						|
        $code = "var www = '$root';\n";
 | 
						|
        $code .= Javascript::get_lang('FieldRequired', 'Send2All', 'AddAnAttachment', 'Everybody');
 | 
						|
        $result .= Javascript::tag_code($code);
 | 
						|
        return $result;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * constructs the form to display all the groups and users the message has been sent to
 | 
						|
     * input: 	$sent_to_array is a 2 dimensional array containing the groups and the users
 | 
						|
     * 			the first level is a distinction between groups and users:
 | 
						|
     * 			$sent_to_array['groups'] * and $sent_to_array['users']
 | 
						|
     * 			$sent_to_array['groups'] (resp. $sent_to_array['users']) is also an array
 | 
						|
     * 			containing all the id's of the groups (resp. users) who have received this message.
 | 
						|
     * @author Patrick Cool <patrick.cool@>
 | 
						|
     */
 | 
						|
    public static function sent_to_form($sent_to_array)
 | 
						|
    {
 | 
						|
        // we find all the names of the groups
 | 
						|
        $group_names = self::get_course_groups();
 | 
						|
 | 
						|
        // we count the number of users and the number of groups
 | 
						|
        if (isset($sent_to_array['users'])) {
 | 
						|
            $number_users = count($sent_to_array['users']);
 | 
						|
        } else {
 | 
						|
            $number_users = 0;
 | 
						|
        }
 | 
						|
        if (isset($sent_to_array['groups'])) {
 | 
						|
            $number_groups = count($sent_to_array['groups']);
 | 
						|
        } else {
 | 
						|
            $number_groups = 0;
 | 
						|
        }
 | 
						|
        $total_numbers = $number_users + $number_groups;
 | 
						|
 | 
						|
        // starting the form if there is more than one user/group
 | 
						|
        $output = array();
 | 
						|
        if ($total_numbers > 1) {
 | 
						|
            //$output.="<option>".get_lang("SentTo")."</option>";
 | 
						|
            // outputting the name of the groups
 | 
						|
            if (is_array($sent_to_array['groups'])) {
 | 
						|
                foreach ($sent_to_array['groups'] as $group_id) {
 | 
						|
                    $output[] = $group_names[$group_id]['name'];
 | 
						|
                }
 | 
						|
            }
 | 
						|
 | 
						|
            if (isset($sent_to_array['users'])) {
 | 
						|
                if (is_array($sent_to_array['users'])) {
 | 
						|
                    foreach ($sent_to_array['users'] as $user_id) {
 | 
						|
                        $user_info = api_get_user_info($user_id);
 | 
						|
                        $output[] = $user_info['complete_name_with_username'];
 | 
						|
                    }
 | 
						|
                }
 | 
						|
            }
 | 
						|
        } else {
 | 
						|
            // there is only one user/group
 | 
						|
            if (isset($sent_to_array['users']) and is_array($sent_to_array['users'])) {
 | 
						|
                $user_info = api_get_user_info($sent_to_array['users'][0]);
 | 
						|
                $output[] = api_get_person_name($user_info['firstname'], $user_info['lastname']);
 | 
						|
            }
 | 
						|
            if (isset($sent_to_array['groups']) and is_array($sent_to_array['groups']) and isset($sent_to_array['groups'][0]) and $sent_to_array['groups'][0] !== 0) {
 | 
						|
                $group_id = $sent_to_array['groups'][0];
 | 
						|
                $output[] = " " . $group_names[$group_id]['name'];
 | 
						|
            }
 | 
						|
            if (empty($sent_to_array['groups']) and empty($sent_to_array['users'])) {
 | 
						|
                $output[] = " " . get_lang('Everybody');
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        if (!empty($output)) {
 | 
						|
            $output = array_filter($output);
 | 
						|
            if (count($output) > 0) {
 | 
						|
                $output = implode(', ', $output);
 | 
						|
            }
 | 
						|
            return $output;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function separates the users from the groups
 | 
						|
     * users have a value USER:XXX (with XXX the groups id have a value
 | 
						|
     *  GROUP:YYY (with YYY the group id)
 | 
						|
     * @param    array   Array of strings that define the type and id of each destination
 | 
						|
     * @return   array   Array of groups and users (each an array of IDs)
 | 
						|
     */
 | 
						|
    public static function separate_users_groups($to)
 | 
						|
    {
 | 
						|
        $grouplist = array();
 | 
						|
        $userlist = array();
 | 
						|
        foreach ($to as $to_item) {
 | 
						|
            list($type, $id) = explode(':', $to_item);
 | 
						|
            switch ($type) {
 | 
						|
                case 'GROUP':
 | 
						|
                    $grouplist[] = intval($id);
 | 
						|
                    break;
 | 
						|
                case 'USER':
 | 
						|
                    $userlist[] = intval($id);
 | 
						|
                    break;
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        $send_to['groups'] = $grouplist;
 | 
						|
        $send_to['users'] = $userlist;
 | 
						|
        return $send_to;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Returns all the users and all the groups a specific announcement item
 | 
						|
     * has been sent to
 | 
						|
     * @param    string  The tool (announcement, agenda, ...)
 | 
						|
     * @param    int     ID of the element of the corresponding type
 | 
						|
     * @return   array   Array of users and groups to whom the element has been sent
 | 
						|
     */
 | 
						|
    public static function sent_to($tool, $id)
 | 
						|
    {
 | 
						|
        global $tbl_item_property;
 | 
						|
 | 
						|
        $tool = Database::escape_string($tool);
 | 
						|
        $id = intval($id);
 | 
						|
 | 
						|
        $sent_to_group = array();
 | 
						|
        $sent_to = array();
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
 | 
						|
        $sql = "SELECT to_group_id, to_user_id
 | 
						|
                FROM $tbl_item_property
 | 
						|
                WHERE c_id = $course_id AND tool = '$tool' AND ref=" . $id;
 | 
						|
        $result = Database::query($sql);
 | 
						|
 | 
						|
        while ($row = Database::fetch_array($result)) {
 | 
						|
            // if to_group_id is null then it is sent to a specific user
 | 
						|
            // if to_group_id = 0 then it is sent to everybody
 | 
						|
            if ($row['to_group_id'] != 0) {
 | 
						|
                $sent_to_group[] = $row['to_group_id'];
 | 
						|
            }
 | 
						|
            // if to_user_id <> 0 then it is sent to a specific user
 | 
						|
            if ($row['to_user_id'] <> 0) {
 | 
						|
                $sent_to_user[] = $row['to_user_id'];
 | 
						|
            }
 | 
						|
        }
 | 
						|
        if (isset($sent_to_group)) {
 | 
						|
            $sent_to['groups'] = $sent_to_group;
 | 
						|
        }
 | 
						|
        if (isset($sent_to_user)) {
 | 
						|
            $sent_to['users'] = $sent_to_user;
 | 
						|
        }
 | 
						|
        return $sent_to;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Show a list with all the attachments according to the post's id
 | 
						|
     * @param int announcement id
 | 
						|
     * @return array with the post info
 | 
						|
     * @author Arthur Portugal
 | 
						|
     * @version November 2009, dokeos 1.8.6.2
 | 
						|
     */
 | 
						|
    public static function get_attachment($announcement_id)
 | 
						|
    {
 | 
						|
        $tbl_announcement_attachment = Database::get_course_table(TABLE_ANNOUNCEMENT_ATTACHMENT);
 | 
						|
        $announcement_id = intval($announcement_id);
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
        $row = array();
 | 
						|
        $sql = 'SELECT id, path, filename, comment FROM ' . $tbl_announcement_attachment . '
 | 
						|
				WHERE c_id = ' . $course_id . ' AND announcement_id = ' . $announcement_id . '';
 | 
						|
        $result = Database::query($sql);
 | 
						|
        if (Database::num_rows($result) != 0) {
 | 
						|
            $row = Database::fetch_array($result, 'ASSOC');
 | 
						|
        }
 | 
						|
        return $row;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function add a attachment file into announcement
 | 
						|
     * @param int  announcement id
 | 
						|
     * @param string file comment
 | 
						|
     * @param array  uploaded file $_FILES
 | 
						|
     * @return int  -1 if failed, 0 if unknown (should not happen), 1 if success
 | 
						|
     */
 | 
						|
    public static function add_announcement_attachment_file($announcement_id, $file_comment, $file)
 | 
						|
    {
 | 
						|
        $_course = api_get_course_info();
 | 
						|
        $tbl_announcement_attachment = Database::get_course_table(TABLE_ANNOUNCEMENT_ATTACHMENT);
 | 
						|
        $return = 0;
 | 
						|
        $announcement_id = intval($announcement_id);
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
 | 
						|
        if (is_array($file) && $file['error'] == 0) {
 | 
						|
            $courseDir = $_course['path'] . '/upload/announcements'; // TODO: This path is obsolete. The new document repository scheme should be kept in mind here.
 | 
						|
            $sys_course_path = api_get_path(SYS_COURSE_PATH);
 | 
						|
            $updir = $sys_course_path . $courseDir;
 | 
						|
 | 
						|
            // Try to add an extension to the file if it hasn't one
 | 
						|
            $new_file_name = add_ext_on_mime(stripslashes($file['name']), $file['type']);
 | 
						|
            // user's file name
 | 
						|
            $file_name = $file['name'];
 | 
						|
 | 
						|
            if (!filter_extension($new_file_name)) {
 | 
						|
                $return = -1;
 | 
						|
                Display :: display_error_message(get_lang('UplUnableToSaveFileFilteredExtension'));
 | 
						|
            } else {
 | 
						|
                $new_file_name = uniqid('');
 | 
						|
                $new_path = $updir . '/' . $new_file_name;
 | 
						|
                $result = @move_uploaded_file($file['tmp_name'], $new_path);
 | 
						|
                $safe_file_comment = Database::escape_string($file_comment);
 | 
						|
                $safe_file_name = Database::escape_string($file_name);
 | 
						|
                $safe_new_file_name = Database::escape_string($new_file_name);
 | 
						|
                // Storing the attachments if any
 | 
						|
                $sql = 'INSERT INTO ' . $tbl_announcement_attachment . ' (c_id, filename, comment, path, announcement_id, size) ' .
 | 
						|
                    "VALUES ($course_id, '$safe_file_name', '$file_comment', '$safe_new_file_name' , '$announcement_id', '" . intval($file['size']) . "' )";
 | 
						|
                $result = Database::query($sql);
 | 
						|
                $return = 1;
 | 
						|
            }
 | 
						|
        }
 | 
						|
        return $return;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function edit a attachment file into announcement
 | 
						|
     * @param int attach id
 | 
						|
     * @param array uploaded file $_FILES
 | 
						|
     * @param string file comment
 | 
						|
     * @return int
 | 
						|
     */
 | 
						|
    public static function edit_announcement_attachment_file($id_attach, $file, $file_comment)
 | 
						|
    {
 | 
						|
        global $_course;
 | 
						|
        $tbl_announcement_attachment = Database::get_course_table(TABLE_ANNOUNCEMENT_ATTACHMENT);
 | 
						|
        $return = 0;
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
 | 
						|
        if (is_array($file) && $file['error'] == 0) {
 | 
						|
            $courseDir = $_course['path'] . '/upload/announcements'; // TODO: This path is obsolete. The new document repository scheme should be kept in mind here.
 | 
						|
            $sys_course_path = api_get_path(SYS_COURSE_PATH);
 | 
						|
            $updir = $sys_course_path . $courseDir;
 | 
						|
 | 
						|
            // Try to add an extension to the file if it hasn't one
 | 
						|
            $new_file_name = add_ext_on_mime(stripslashes($file['name']), $file['type']);
 | 
						|
            // user's file name
 | 
						|
            $file_name = $file ['name'];
 | 
						|
 | 
						|
            if (!filter_extension($new_file_name)) {
 | 
						|
                $return - 1;
 | 
						|
                Display :: display_error_message(get_lang('UplUnableToSaveFileFilteredExtension'));
 | 
						|
            } else {
 | 
						|
                $new_file_name = uniqid('');
 | 
						|
                $new_path = $updir . '/' . $new_file_name;
 | 
						|
                $result = @move_uploaded_file($file['tmp_name'], $new_path);
 | 
						|
                $safe_file_comment = Database::escape_string($file_comment);
 | 
						|
                $safe_file_name = Database::escape_string($file_name);
 | 
						|
                $safe_new_file_name = Database::escape_string($new_file_name);
 | 
						|
                $id_attach = intval($id_attach);
 | 
						|
                $sql = "UPDATE $tbl_announcement_attachment SET filename = '$safe_file_name', comment = '$safe_file_comment', path = '$safe_new_file_name', size ='" . intval($file['size']) . "'
 | 
						|
					 	WHERE c_id = $course_id AND id = '$id_attach'";
 | 
						|
                $result = Database::query($sql);
 | 
						|
                if ($result === false) {
 | 
						|
                    $return = -1;
 | 
						|
                    Display :: display_error_message(get_lang('UplUnableToSaveFile'));
 | 
						|
                } else {
 | 
						|
                    $return = 1;
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
        return $return;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function delete a attachment file by id
 | 
						|
     * @param integer $id attachment file Id
 | 
						|
     *
 | 
						|
     */
 | 
						|
    public static function delete_announcement_attachment_file($id)
 | 
						|
    {
 | 
						|
        $tbl_announcement_attachment = Database::get_course_table(TABLE_ANNOUNCEMENT_ATTACHMENT);
 | 
						|
        $id = intval($id);
 | 
						|
        $course_id = api_get_course_int_id();
 | 
						|
        $sql = "DELETE FROM $tbl_announcement_attachment WHERE c_id = $course_id AND id = $id";
 | 
						|
        Database::query($sql);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param int $id
 | 
						|
     * @param bool $sendToUsersInSession
 | 
						|
     */
 | 
						|
    public static function send_email($id, $sendToUsersInSession = false)
 | 
						|
    {
 | 
						|
        $email = AnnouncementEmail::create(null, $id);
 | 
						|
        $email->send($sendToUsersInSession);
 | 
						|
    }
 | 
						|
}
 | 
						|
 |